// Emacs style mode select   -*- C++ -*-
//-----------------------------------------------------------------------------
//
// Copyright (C) 1993-1996 by id Software, Inc.
//
// This program is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public License
// as published by the Free Software Foundation; either version 2
// of the License, or (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
//
// DESCRIPTION:
//      System specific interface stuff.
//
//-----------------------------------------------------------------------------

#ifndef __I_VIDEO__
#define __I_VIDEO__

#include "doomtype.h"

// Called by D_DoomMain,
// determines the hardware configuration
// and sets up the video mode
void I_InitGraphics (void);

void I_ShutdownGraphics(void);

// Takes full 8 bit values.
void I_SetPalette (byte* palette);


void I_UpdateNoBlit (void); 

void I_FinishUpdate (void) __attribute((section(".fastcode")));

// Wait for vertical retrace or pause a bit.
void I_WaitVBL(int count);

void I_ReadScreen (byte* scr);

void I_BeginRead (void);
void I_EndRead (void);

#endif  // __I_VIDEO__
